【正文】 train. 如果你早一點(diǎn)起床，就會(huì)趕上火車的。 If I had time, I would study French. 如果我有時(shí)間，我會(huì)學(xué)習(xí)法語的。He (you,they) would + have + 過去分詞。 He (you,they) would + 動(dòng)詞原形。在表示與事實(shí)相反的虛擬語氣時(shí)，動(dòng)詞有三種時(shí)態(tài)形式，即現(xiàn)在、過去和將來。s important that we should take good care of the patient. 重要的是我們要照顧好病人。s natural that she should do so. 她這樣做是很自然的。s necessary that we should have a walk now. 我們有必要出去散散步。 He ordered that the students wash the clothes every week by themselves. 他要求學(xué)生每周都要自己洗衣服。 動(dòng)詞 demand, suggest, order, insist, propose 后面的從句中，should 可以省略。 I wish I could help him. 我希望我能幫助他。 Have a good journey! 祝愿你旅途愉快！ You go out！ 你出去！ 2) 虛擬語氣用在賓語從句中：動(dòng)詞 wish, suggest,order,insist, propose,等詞后面的賓語從句表示的是一種虛擬語氣，賓語從句中的動(dòng)詞動(dòng)作表示的只是一種愿望、要求。 May you have a good time. 祝愿你玩得痛快。虛擬語氣的用法： 1) 虛擬語氣用在簡(jiǎn)單句中，表示祝愿，命令?！?jiān)決主張 insist。 要求demand 、desire、request； 決定 decide。例句：The teacher told his class that light travels faster than sound. 練習(xí)題(1) It’s 7:30. I can’t believe you___ cooking dinner yet, Sally.A. haven’t started B. didn’t C. don’t start D. hadn’t started(2) The teacher told us yesterday that December 25 ____ Christmas Day.A. is B. was C. has been D. will be例句：The headmaster hopes everything goes well. 主句是過去時(shí)態(tài)，從句須用過去時(shí)態(tài)的某種形式。I don’t know what they are looking for. Could you tell me when the train will leave? 練習(xí)題(1) Did you find out ______?連接代詞一般指疑問,但what, whatever除了指疑問外,也可以指陳述.Do you know who has won Red Alert game?你知道是誰贏得了紅色警報(bào)的游戲么？The book will show you what the best CEOs should know.這本書會(huì)告訴你最好的執(zhí)行總裁該了解什么.Have you determined whichever you should buy,a Motorola or Nokia cell phone?你決定好是買諾基亞還是摩托羅拉的電話了嗎?③連接副詞有：when,where,why,how，在句中擔(dān)任狀語的成分。用于這種結(jié)構(gòu)的動(dòng)詞常常是：see, say, tell, ask, answer, know, decide, show, find out, imagine, suggest, doubt, wonder, discover, understand, inform, advise等。⑥若用if會(huì)引起歧義時(shí)，則用whether。⑤引導(dǎo)主語從句和表語從句時(shí)宜用whether。如：Whether this is true or not，I can39。t decided whether to go by bus or by train．他還未決定是乘公共汽車去還是坐火車去。t decided whether to visit the old man．他尚未決定是否拜訪那位老人。③在不定式前用whether。We39。如：I39。I wonder whether we stay or whether wego．我不知道我們是去還是留。t know whether ／if he does any washing or not．（＝I don39。如：Let me know whether ／if he will e or not．（＝Let me know whether or not he will e）讓我知道他是否能來。t know if ／whether he still lives here after so many years．我不知道這么多年后他是否還住在這兒。 由whether,if 引導(dǎo)的賓語從句當(dāng)由一般疑問句充當(dāng)賓語從句時(shí)，用if或whether引導(dǎo)，意為“是否”。I can’t tell him that his mother died. 當(dāng)it作形式賓語時(shí) 例句：She made it clear that she had nothing to do with him．許多帶復(fù)合賓語的句子，that引導(dǎo)的賓語從句經(jīng)常移到句子后部，而用it作形式賓語。I believe（that）you have done your best and that things will get better． 當(dāng)主句的謂語動(dòng)詞與that賓語從句之間有插入語時(shí)，that一般不可省。t expect that we are ing so soon, does she?練習(xí)題(1)．I don’t think he is right,__________?A．isn’t he B．is he C．do I D．don’t I(2). He believes she is right, __________?A．doesn’t he B．does he C．is she D．isn’t she(3).I thought that he disliked playing football,__________?A．didn’t he B．did he C．did I D．didn’t I(4). I find _____ important that we practice English every day.A. it B. this C. that D. whatt believe she39。t she? 　　You thought they could have pleted the project, didn39。t you?如果賓語從句中有某個(gè)含有否定意義的形容詞或副詞(不包含帶有否定前綴的詞，如：unhappy，unfair，dislike等),其反義疑問句要用肯定形式. We find that he never listens to the teacher carefully, does he? 我們發(fā)現(xiàn)他從不仔細(xì)聽老師講課，是不是？當(dāng)主句的主語是第二、三人稱時(shí)，其反義疑問句一般與主句保持一致。I don’t think it is right for him to treat you like that.主句的謂語動(dòng)詞是think,believe,imagine,suppose,consider,expect,fancy,guess等,并且主句的主語是第一人稱而且為一般現(xiàn)在時(shí),從句的否定詞一般要轉(zhuǎn)移到主句上來,其反義疑問句一般與賓語從句一致. I don’t believe that man is killed by Jim,is he? 我認(rèn)為那個(gè)人不是Jim所殺的,是不是? I expect our English teacher will be back this weekend, won39。① 連詞：　He told me (that he would) go to the college the next year 他告訴我他明年上大學(xué). 　　I don’t know if there will be a bus any more. 我不知道是否還會(huì)有公交車. 　　Nobody knew whether he could pass the exam. 沒有人知道他